112 THE PEAFLOWER TRIBE. [ Trifolium. 
much resembles 7. pratense, and may be a mere variety. It is a hand- 
somer plant, with narrower stipules and leaflets; the heads of flowers are 
always more or less pedunculate above the last floral leaves, and the corolla 
rather larger, of a brighter and richer colour. The zigzag stem is not a 
very constant differential character, and even the pedunculate flower-heads 
may be occasionally observed also in 7’. pratense. 
In open woods, bushy pastures, on banks and roadsides, in northern and 
central Europe, and across Russian Asia, becoming a mountain plant in 
southern Europe. Generally spread over Britain, but more common in 
southern Scotland and northern England than further north or south ; 
extends also into Ireland. FV. summer. 
7, T.maritimum, Huds, (fig. 251). Sea Clover.—A pubescent 
annual, with spreading or decumbent stems, seldom above a foot high, and 
more slender than the last three, with much smaller flowers. Stipules long 
and narrow. Leaflets narrow-obovate or oblong. Flower-heads at first 
globular, then ovoid, shortly pedunculate above the last leaves. Calyx- 
teeth at first subulate, the lower one longer than the others, but all much 
shorter than in Z. pratense, and after flowering they are somewhat 
enlarged, stiff, and slightly spreading. Corolla pale pink, rather longer 
than the calyx. 
In salt-marshes and rich meadows near the sea, in southern and western 
Kurope, rarely extending inland along great rivers. In Britain, confined 
to southern England, and has been occasionally found in Ireland. 7. 
summer, rather early. 
8. LT. striatum, Linn. (fig. 252). Knotted Clover.—A small, tufted, 
more or less spreading annual, covered with short, soft hairs. Stipules 
ovate, ending in a fine point. Leaflets obovate. Flower-heads small, 
ovoid or globular, chiefly terminal, and closely sessile within the last leaves, 
of which the stipules are very broad and thin, with occasionally one or two 
heads sessile in the axils of the upper leaves. Calyx softly hairy, with 
short but subulate teeth, which remain erect after flowering. Corolla very 
small and pale red. 
In dry pastures, on banks and waste places, in central and southern 
Europe to the Caucasus, extending northward into southern Sweden. 
Diffused over nearly the whole of England and southern Scotland, very rare 
in Ireland. £7. all summer. 
9, T.scabrum, Linn. (fig. 258). Rough Clover.—Very near T. 
striatum, and not always easy to distinguish from it. Usually more pro- 
cumbent and less hairy, the leaflets not so broad, the flower-heads more in 
the axils of the leaves, and the stipules of the floral leaves less prominent ; 
but the chief distinction lies in the calyx, of which the teeth are broader, 
more rigid, and usually spreading or recurved after flowering, giving the 
plant a stiffer appearance. Flowers small and whitish. 
In dry pastures and waste places, in central and southern Europe to the 
Caucasus, scarcely extending into northern Germany. In Britain, chiefly 
near the sea, in England, eastern Ireland, and eastern Scotland, but less 
common than 7’ striatum. Fl. all summer. 
10, 'T. strictum, Linn. (fig. 254). Upright Clover.—An erect annual, — 
seldom 6 inches high, and perfectly glabrous. Stipules very broad and 
thin, Leaflets narrow. Flower-heads solitary, or two or three on each 
